Bobbin-winding machine



June 1%, 1923. I 1,459,074

E. J. RAY

BOBBIN WINDING MACHINE Filed July 27. 1920 Patented June 19, 1923.

EUGENE J. RAY, or BEVERLY, MASSACHUSETTS, AssIeNoR TO UNiT EE SHOE MACHINERY CORPORATION, OF PA'IERSON, NEw JERSEY, a CORPORATION OF NEW JERSEY.

EoBBIN-wINniNe MACHINE.

7 Application filed July 27, 1920 Serial No. 399,282.

To all 107mm it may concern:

Be it known that I, EUGEN J. RAY, a citizen of the United States, residing at Beverly, in the county of Essex and State of Massachusetts, have invented certain new and useful. Improvements in Bobbin-find ing Machines; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the Same.

This invention relates to machines for winding waxed thread on sewing machine bobbins and, more particularly, to heating device for such machines.

In winding waxed thread on bobbins, the thread is often chilled beforeit reaches the bobbin and the wax on the thread becomes partially congealed. If the thread is not heated before it is wound on the bobbin, the thread will not lay on the bobbin in even layers and the amount of thread which can be wound on the bobbin is greatly reduced. For this reason, bobbin winding machines for winding waxed thread are usually provided with heating devices for heating the thread before it is applied to the bobbin.

The primary objects of the present inven tion are to improve the construction and mode of operation of heating devices for bobbin winding machines of this class, and to produce a machine having a heating device which will heat the thread in a highly efficient manner with very little loss of heat.

With these objects in view, the invention consists in the novel and improved con- Structions, arrangements and combination of parts hereinafter described and particularly pointed out in the claims, the advantages of which will be readily understood and appreciated by those skilled in the art.

The invention will be clearly understood from the accompanying drawings illustrating the invention in its preferred form, and the following detailed description of the constructions therein shown.

In the drawings Fig. 1 is a plan view partly broken away and partly in section of a machine embodying the invention; Fig. 2 is a view in front elevation of the machine; Fig. 3 is a view in end elevation of the machine looking from the right; and Fig. 4 is a sectional view of the machine taken the heating unit removed.

' The machine illustrated in the drawing is provided with a rotary driving shaft 2 upon which are mountedfast and loose pulleys 4 and 6. The bobbin is supported in the machine between the inner end of the driving shaft 2 and the inner end of a rotary stud 8 rotatably mounted in a bearing in a shaft 10. The shaft 10 is mounted to slide longitudinally in. a bearing in the frame, and is acted upon by a spring (not shown) which tends to force the sameine wardly so asto hold the bobbin in position between the stud 8 and the shaft 2 as shown in Figs. 1 and 2. Upon the shaft 10 is mounted a hand wheel 12 by meansof which the shaft may be moved outwardly in inserting or releasing a bobbin. The thread is guided onto the bobbin by means of a groove guide roll 14L rotatably and axially movable on a rod 16.

The thread as,'or just before it reaches the bobbin, is engaged by a thread presser 18 formed on thefree or movable end of one arm of a bell crank lever 20 pivoted at 22 on the frame. The other arm of the lever is acted upon yieldingly by certain 5 devices (not shown) which tend to swing the same into a direction to carry the thread pressed toward the bobbin, The movement of the presser toward the bobbin, however, is limited by means of a latch 80 pivoted at 32 on the frame and provided with shoulders 34 and 35 arranged to engage the for wardly extending arm of the lever 20. During the winding operation the latch 30 and the lever 20 are relatively located so that the lever engages the shoulder'35. With the lever in the position thus determined by the latch, the thread presser 18 is located close to the bobbin in position to engage the thread substantially as it reaches the bobbin. The thread presser thus cooperates with the thread guide 14 to cause the thread to wind on the bobbin compactly in smooth, even layers.

Before a bobbin is inserted in or removedfrom the machine, the lever 20 and latch 30 are relatively located so that the shoulder 34 on the latch engages the lever, thereby holding the lever in the position shown in the drawings with the thread presser 18 located relatively remote from the bobbin. The latch is held in acting position by a coiled spring 36. Upon starting the machine the latch 30 is swung by the operator against the action oft-he spring to release the shoulder 34 from engagement with the-lever 20wand ,alloW the lever to engage the shoulder 35.

For the purpose of heating the thread as it'is Wound on the bobbin thethread presser 18 is heated to a relatively high temperature-- by means-of a heating device mounted thereon, and the thread p-resser heats the thread by conduction and radiation at and adjacent.

a point of contact of the thread therewith. Inthe present machine the heating device consists of an electrical, heating unit 2st mounted in a suitable chamber in thethread presser from which,lead conduictor wires 26 connected Withthe plug; terminals 28. of a. fiatiron, plug,

By, heating the threadpresser thethre hd is heated at the most advantageous point and theheating of thethrread requires a very small amount of heat, Furthermore,- the reduction of the wax on t-he -thread,to the-properconditionto enable-the thread to be Wound evenly and compactly, o\n-,the .b o,bbin is insured.

Having explainedthe nature and. object of the invention, and having-specifically. de-

' scribedeasmachine, embodying the invention in its preferred form, What is-claimediisc 1. Abobbin Winding machine hav ng, in combination, means, for rotatably supporting' abobbin, means for rotating the bobbin,

a lever, a. thread presser formed on thetreeend ofsaidlever for engaging the thread as it is wound on thG'bObbIII, and a heating device carriedby. the thread p resser; inclose proximity to the point of engagement with the thread.

2. Abobbin windin machine having, in combination, means for rotatably support ing a bobbin, means for rotating the bobbin, a thread presser for engaging the thread as it is -Wound on the bobbin, anelectrica'l-heating unitcarried by the threadpresser and circuit connections for said heating unit.

3. A bobbin Winding machine having, in

combination, means for rotatably supportit is Woundon the bobbin provided Witha chamberin close proximity to: the, point of engagement With the thread, and a, heating device mounted in said chamber. a 5. A bobbin Winding machmehavmg, in

combination, means. for rotatabiy supporting a bobbin, means for rotating the: bob.- bin, a thread presser 'for engagingthe thread as it is Woundon the, bobbin providedwith' a, chamber in closenproximityz tmthepoint of engagementiwith the, thread a-ndan electrical heating unit mounted in the chamber,

and circuit, connections for said l heating,

unit.

EUGENELJ; an,

(r in; 

